I've a big problem with fc pro: I have the audio track and the video track, recorded from two different devices, imported in my project, then synced in my timeline. All is good when I watch playback. But when I press pause the video is not sync anymore. Worse: at the beginning of the clips. both audio and video are synced, but going on the video go little by little away from the "right point" till the end, where is many seconds out of sync. I repeat, I see all this only when the timeline is paused, but the playback is ok at every point. The export confirm that thing, making me see the video going out of sync graduately. I encountered this problem again and I fixed it enlarging the size of the clip from 100% to 100,01%, so it lose the render, and after rendering all works, but in that case the out of sync was constant. How can I fix something that lose sync graduately??!!

Maybe it can help you to give me an answer:

I use a macbook pro OSX 10.7.4 8 GB RAM, 1 GB videoboard

My software version is fc pro 7.0, never update (I'm a donkey, but I'm afraid that with some updates I will lose my copy of the software, cause I've not "exactly" bought it)